Electric switch.



. E. ANDERSON.

ELECTRIC SWITGIL APPLIGATION FILED Auml, 1913.

.Patented Sept. 9, 1913.

y T all 'whom it may concern:

anic ANDERsomoF BRIDGEPGBT,CONNECTICUT,AssmNoR rro v'rmi BRYANT nime-Y rnrc COMPNY, or. nnmonroar, coNNEc'rIcUT, A coRPoRATroN or coNNnc'rIcUr'.

i Specication e1' Letters Patent. 'Application sied April 21,1913. seriaiNo. 762,661.

Patented sept. o. i o1 Be it known 'that' LfERIC ANDEnsoNfa citizen of Athe United' States of lAmerica,v

and residing at Bridgeport, in the county of Fairfield andA State' of -Connecticiihhave invented-a certain 'new and lmpro\'edEl'ec-' -tricy Switch, of which the following is a l lspecification.

' My invention `relates to electric switch mechanisms and particularly to switches for electric lamp sockets, thefobjectof my in- `ve'ntion being to provide a quick make and quick break mechanism of simple construc- .tion adapted to effect a Wideseparation o f the contacts'and a double break. I' p ln the accompanying drawings, Figure 1 ist-a vertical .section through a lamp ,socket 4in which my, improved switch mechanism is embodied'inone form; Fig. 2 is a llongitudinal vertical section through the switch meclianisni`there shown; and Figgg. 3 is 'a drop ed ers ective of-various switch )arts i P P t. p The switch mechanism in which my inf vention is here shown embodied, is arranged in a lamp socket of.' the same general charl, acter and position of line and-,switch terminalsr as shown inthe copending` applica-A -tion ot- Gf. lV. Goodiidge 751,272, and a's minals 1Q, the other being'connect'ed to a no claim is made. to originality otsuch 'arrangement, these pa-rtsare `for the mostpart omitted from the drawing. The socket body, here comprising the two insulating buttons A and B ot porcelain, is inclosed as usual in the casing comprising cap 5, shell G andA insulating lining 7. 'he shell vterminal S is mounted'upon the outer tace of the button B Vand is permanently connected to one of the wire terminals (not The center contact 9, is electrically connected with one of the switch terwire terminal (not shown).

The switch piece comprises a yoke '11, the

` closed end of Which electrically connects the switch terminals 10 in the on position of' theswitch, while the `ends of the yoke legs are perforated-'at 12 to form bearings en gaged'u on lugs 13 offset from the frame 14.

The oscillation of the 'switch piece is effected by a compression spring 15, bearing at one end againstl the cross piece of the yoke l' 1], and at the other'end'against a slide abutment 16. A'guide plunger '17, one end of which passes through theperforation 18 inthe yoke carries the spring and rocksat -path of the cam.

its other end in the pivoting recess iSaon the facev ofthe slide 16. .Obviously as thel Aslide is moved to shift the; head end of the plunger 17 to one side orothyer of the axis of oscillation ot' the switch` piece on ,tho

lugs 13, the'pressure of the spring isexeru-d oscillation of. theswitch piece, in one direction by the cam 19 on the spindle 20 of the switch key 21, the lug 22.011 the slide being extended through, 1f slot 28 yin the upright. 23 ot the frame 14'to lie in the The depression of the slide serres to compress a spring 25 which underlies the slide,l so that upon a further quarter turn of the -key 21, .the slide is presscd'up again by the spring 25 and the end of-the'switch spring 15 shifted to a position abovek the axis of oscillation of the switch piece. A guide pin 24 on lthe slide retains 'spring 25 in position.

The lug 26 at the upper end of the slide works in the guide slotf27 in4 the upright.

23 of the frame arainst which the'slide is constantly presse by the compression spring 15. rlhe extent of vertical movement for the slide is ofj course limited either b v the length-of these guide slots 27 and 2S,

or by the smaller diameter of the cani 19.

The switch spindle 42() is jourualed in the uprights 23 and 29 and is secured in any suitable way. A simple method is illustrated'viz., by mounting the cani on`a sleeve 30 of greater diameter than the journal apertures 31, 32 for the spindle which-passes through 4the sleevel 30. A pin 33, passedthrough the spindle and sleeve, holds the 'latter together and prevents the accidental' switch piece for operating the latter and av moi'able abutment for the other end ot' said spring, a manually operated member and .means in connection therewith for shifting said abutment in one direction past, the axis v of oscillation of said swltcli piece, and sprlng means operatively engaging sald abutment to shift the latter in opposite direction past the axis of oscillation of said switch piece. v y

2. 'An electric switch mechanism comprising a pivoted oscillating switch ieee, a spring suitably connected to the ree end of s'aid switch piece for operating the latter, a Slide abutment for the other end of said spring, u manually operated cam 0peratively engaging said slide abutment to shift tbe abutting end of said switch spring past tbe center of oscillation of said switch piece, and a spring operatively engaging Saul-slide to slutt said spring end 1n the 0pposite directionvpast the center of oscillation of the switch piece, substantially as dcscribed.

3. An electric switch mechanism compris-- ing a pivoted oscillating switch iece, a

sp1-ing suitably connected to tbe ree end f of said switch piece for operating the latter, a slidefabutrnent for the other end of said spring, a manually 4operated Clm 013-.

erat-ivelv engaging said slide abutmenty vto shift the abutting end of said switch spring past the center of oscillation of said switch l piece, and a spring operatively engaging' said slide to shift said spring end in the opposite direction past the center of oscillation of the switch piece, said slide operating springl being' placed underoperat-ing tension by the movemeutof the slide under tbe influence ofvsaid cam,v substantially as described. i

In testimonywvbereof I have signed mi name to this specilication, in tbe presen@ of two subscribing witnesses.

i ERIC ANDERSGN.-

lVitnesses: v

GEORGE B; THOMAS, Gr. lV. Goouiuncn. 

